CN113943053B

CN113943053B - Domestic sewage treatment device

Info

Publication number: CN113943053B
Application number: CN202111575481.5A
Authority: CN
Inventors: 罗清元; 杨沈丽; 闫素杰; 胡涛; 王婉婉; 刘丽娜; 景晶; 郭林; 徐志国; 詹忠华; 王磊; 杨丹; 李中原; 王国重; 胡彩虹
Original assignee: Henan Zhoukou Hydrology And Water Resources Survey Bureau; Henan Lianyue Construction Engineering Co ltd
Current assignee: Henan Zhoukou Hydrology And Water Resources Survey Bureau; Henan Lianyue Construction Engineering Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-04-05
Anticipated expiration: 2041-12-22
Also published as: CN113943053A

Abstract

The invention discloses a domestic sewage treatment device, which comprises a treatment box and a plurality of support legs arranged at the lower end of the treatment box, wherein the lower ends of the support legs are provided with support blocks for supporting, the upper left end of the treatment box is provided with a feeding port for feeding materials, the middle position in the treatment box is horizontally provided with a partition plate, the left side of the partition plate is provided with a filter screen for filtering sewage, and a sewage collecting box for collecting sewage is arranged below the filter screen. Saves the bagging resources and has strong practicability.

Description

Domestic sewage treatment device

Technical Field

The invention relates to the technical field of environmental protection equipment, in particular to a domestic sewage treatment device.

Background

Domestic sewage is wastewater discharged in daily life of residents and mainly comes from residential buildings and public buildings. Along with the continuous improvement of daily life of people, the amount of the produced domestic sewage is more and more, the domestic sewage is uniformly recycled, utilized and managed in a standardized environment-friendly low-cost mode, the domestic sewage is harmless, reduced and recycled, a large amount of solid garbage exists in the domestic sewage produced in a kitchen and the like, and the solid garbage in the domestic sewage is easy to cause the blockage of a sewer in the process of discharging the domestic sewage through a sewer, so the domestic sewage needs to be treated before being discharged, and on the basis, a sewage treatment device is disclosed in the prior patent publication No. CN111467860B and is used for filtering large-volume impurities in the domestic sewage, crushing small-volume impurities in the sewage and directly discharging the crushed small-volume impurities.

Although the above-mentioned prior art can reduce the problem that impurity causes the jam, above-mentioned device can't carry out recycle to sewage to impurity wherein is smashed and refines, but this kind of biomass after refining still can be piled up in the pipeline is inside, smelly easily, and in addition, bulky impurity occupation space is great when the bagging-off in this technique, is unfavorable for the make full use of disposal bag, on this basis, provides an improved domestic sewage treatment plant now.

Disclosure of Invention

The invention aims to provide a domestic sewage treatment device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a domestic sewage treatment device comprises a treatment box and a plurality of supporting legs arranged at the lower end of the treatment box, wherein the lower ends of the supporting legs are provided with supporting blocks for supporting, the upper left end of the treatment box is provided with a feeding opening for feeding, the middle position in the treatment box is horizontally provided with a partition plate, the left side of the partition plate is provided with a filter screen for filtering sewage, a sewage collecting box for collecting sewage is arranged below the filter screen, the left side of the treatment box where the sewage collecting box is arranged is provided with a drain pipe for draining, the middle position at the top of the treatment box is provided with a second motor, the output end of the second motor is provided with a rotary column, the side surface of the rotary column is provided with an installation side plate, a crushing box is rotatably arranged on the installation side plate, a rotary driving part for driving the installation side plate to rotate is arranged on the installation side plate, the bottom of the crushing box is rotatably provided with a bottom ring which is in pressing contact with the upper end surface of the partition plate to realize sealing, smash the case side and be equipped with the supplementary row material spare that is used for carrying out the crushing cutting piece that cuts and is used for supplementary row material to crushing incasement portion impurity, the column spinner lower extreme is equipped with and is used for switching to smash the support of cutting piece and supplementary row material work and presses the regulating part, the baffle right side is equipped with the blanking mouth that is used for discharging impurity, blanking mouth below is equipped with the loading section of thick bamboo that is used for collecting impurity, the processing case side at loading section of thick bamboo place is equipped with gets material mouth and dodge gate.

As a further scheme of the invention: the crushing cutting part comprises a second reset side plate distributed outside the crushing box in an array mode, a plurality of cutting knives used for cutting are arranged on the inner side face of the second reset side plate, the cutting knives are in sliding fit with sliding knife grooves in the surface of the crushing box, the second reset side plate is fixedly connected with the outer wall of the crushing box through a third spring, a second adjusting inclined plate corresponding to the abutting-against pressure adjusting part is arranged at the upper end of the second reset side plate, and the upper end of the second adjusting inclined plate extends towards the crushing box.

As a further scheme of the invention: supplementary row material piece includes that the array distributes at the sliding opening in crushing case upper end outside, and the cooperation is equipped with a rectangle sliding block in every sliding opening, and every rectangle sliding block is inside to be equipped with an air guide channel, and rectangle sliding block outer end is equipped with the first curb plate that resets, it is fixed through second spring coupling to first reset curb plate and crushing incasement wall, and rectangle sliding block inner downside is equipped with and is used for jet-propelled air jet, rectangle sliding block outside upper end is equipped with an air inlet with air guide channel intercommunication, and the air inlet position is equipped with the guide blade that is used for guiding the air current to get into, first reset curb plate downside be equipped with smash the first regulation swash plate of cutting piece matched with, first regulation swash plate lower extreme is towards crushing case extension.

As a further scheme of the invention: the support and press regulating part is including the solid fixed ring of cover establishing in smashing the case outside, gu fixed ring inboard array distribution has about two rows to support and press interior pole, and every supports the tip of pressing interior pole all is equipped with one and supports the ball that presses with supplementary row material spare or smash the cutting member mutually, gu fixed ring side is connected fixedly with the regulation montant, it is connected with the piston post to adjust montant upper end, the piston post lower extreme slides and sets up in the rectangular hole of column spinner lower extreme, pass through reset spring between piston post upper end and the column spinner, it is equipped with an regulation side lever to adjust the montant side, adjust side lever tip and the revolving chute sliding fit who handles the incasement wall, the extreme height of revolving chute is close to and handles the case left side, the minimum of revolving chute is located handles the case right side.

As a further scheme of the invention: the rotary driving part comprises a driven gear ring arranged on the outer side of the upper end of the crushing box, the upper end tooth surface of the driven gear ring is meshed with a driving gear, the driving gear is arranged at the output end of a first motor, and the first motor is arranged on the side surface of the rotary column.

As a further scheme of the invention: the baffle bottom still is equipped with and is used for scraping the material in order to avoid the anti-blocking mechanism who blocks up to the filter screen, anti-blocking mechanism is including rotating the shifting shaft that sets up at the baffle intermediate position, the shifting shaft upper end is equipped with the second gear, the first gear intermeshing in second gear and the crushing case outside, the shifting shaft lower extreme outside is equipped with one and stirs the curb plate, the baffle lower extreme of shifting shaft one side rotates through the spring that resets and is equipped with a pivot that resets, the pivot that resets is improved level and is worn to be equipped with a slip guide arm, slip guide arm one end is equipped with scrapes the flitch corresponding with the filter screen position, scrapes the flitch upper end and is equipped with the brush face that is used for the clearance, it is fixed through first spring coupling to scrape between flitch and the pivot that resets, the slip guide arm other end is equipped with and stirs curb plate matched with and supports and presses the inclined plane.

As a still further scheme of the invention: the loading barrel is characterized in that a weighing device is arranged inside the processing box at the bottom of the loading barrel, the weighing device is electrically connected with a control panel arranged on the surface of the processing box, and an alarm is arranged on the control panel.

Compared with the prior art, the invention has the beneficial effects that: this application designs to the drawback of current device, the effectual crushing and the recovery of water resource of having realized impurity, accomodate the structure through the establishment simultaneously, make on the blade after smashing impurity scrape away automatically, and the configuration structure of blowing, further reduce remaining of impurity, still dispose the scraping mode when filtering again, avoid appearing the problem of jam, here smash the back with impurity and collect, avoid the problem of the follow-up bagging-off of the great influence of volume, practiced thrift the bagging-off resource, therefore, the clothes hanger is strong in practicability.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a schematic structural view of the anti-blocking mechanism of the present invention.

Fig. 4 is a schematic view showing the structure of the pulverizing cutter in the present invention.

FIG. 5 is a schematic view showing the structure of the crushing box of the present invention.

FIG. 6 is a schematic view of the pressing member and the inner wall of the crushing box according to the present invention.

FIG. 7 is a schematic view of a retaining ring according to the present invention.

Wherein: the device comprises a treatment box 11, an adjusting side rod 12, a rotary column 13, a first motor 14, a second motor 15, a driving gear 16, a crushing box 17, a charging opening 18, a driven gear ring 19, a mounting side plate 20, an auxiliary discharging part 21, a pressing adjusting part 22, a crushing cutting part 23, a filter screen 24, a scraper 25, a sewage collecting box 26, a drain pipe 27, a supporting leg 28, a supporting block 29, an adjusting vertical rod 30, a first gear 31, a second gear 32, a blanking opening 33, a material taking opening 34, a loading barrel 35, a shifting shaft 36, a shifting side plate 37, a pressing inclined surface 38, a sliding guide rod 39, a resetting rotating shaft 40, a first spring 41 and a resetting coil spring 43;

a first reset side plate 2101, a guide blade 2102, an air guide channel 2103, a second spring 2104, an air jet 2105, a first inclined adjusting plate 2106;

the fixing ring 2201, the abutting inner rod 2202, the second reset side plate 2301, the second adjusting inclined plate 2302, the cutting knife 2304 and the third spring 2303.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-7, in an embodiment of the present invention, a domestic sewage treatment apparatus includes a treatment tank 11 and a plurality of support legs 28 disposed at a lower end of the treatment tank 11, a support block 29 for supporting is disposed at a lower end of the support legs 28, a feed inlet 18 for feeding is disposed at an upper left end of the treatment tank 11, a partition is horizontally disposed at a middle position inside the treatment tank 11, a filter screen 24 for filtering sewage is disposed at a left side of the partition, a sewage collection tank 26 for collecting sewage is disposed below the filter screen 24, a drain pipe 27 for draining is disposed at a left side of the treatment tank 11 where the sewage collection tank 26 is disposed, a second motor 15 is disposed at a middle position of a top of the treatment tank 11, a rotary column 13 is disposed at an output end of the second motor 15, a mounting side plate 20 is disposed at a side of the rotary column 13, a crushing tank 17 is rotatably disposed on the mounting side plate 20, the installation side plate 20 is provided with a rotary driving part for driving the installation side plate to rotate, the bottom of the crushing box 17 is rotatably provided with a bottom ring which is in pressing contact with the upper end face of the partition plate to realize sealing, the side face of the crushing box 17 is provided with a crushing cutting part 23 for cutting impurities in the crushing box 17 and an auxiliary discharging part 21 for auxiliary discharging, the lower end of the rotary column 13 is provided with a pressing adjusting part for switching the work of the crushing cutting part 23 and the auxiliary discharging part 21, the right side of the partition plate is provided with a blanking port 33 for discharging the impurities, a loading cylinder 35 for collecting the impurities is arranged below the blanking port 33, the side face of the treatment box 11 where the loading cylinder 35 is located is provided with a material taking port 34 and a movable door, when sewage treatment is carried out, sewage is added into the treatment box 11 along the material feeding port 18, enters the crushing box 17, and at the moment, the domestic sewage is filtered by the filter screen 24 and then enters the sewage collection box 26, the sewage collected by the sewage collecting box 26 is used for irrigating and flushing a toilet, the recovery of water resources is effectively realized, the crushing cutting piece 23 is adjusted to be in a working state through the abutting adjusting piece, so that the crushing of large-volume impurities is completed, after the crushing is completed, the rotary column 13 is driven by the second motor 15 to rotate, the rotary column 13 drives the crushing box 17 to be transferred to the upper part of the blanking port 33, at the moment, the crushed impurities can enter the loading barrel 35 along the blanking port 33, so that the collection of crushed objects is completed, and at the moment, the crushed objects are driven by the abutting adjusting piece;

the crushing and cutting element 23 comprises a second reset side plate 2301 distributed outside the crushing box 17 in an array manner, a plurality of cutting knives 2304 for cutting are arranged on the inner side surface of the second reset side plate 2301, the cutting knives 2304 are in sliding fit with sliding knife grooves on the surface of the crushing box 17, the second reset side plate 2301 is fixedly connected with the outer wall of the crushing box 17 through third springs 2303, a second adjusting inclined plate 2302 corresponding to the abutting-against pressure adjusting element 22 is arranged at the upper end of the second reset side plate 2301, the upper end of the second adjusting inclined plate 2302 extends towards the crushing box 17, the third springs 2303 can drive the cutting knives 2304 to slide outwards without external force, and when the material needs to be cut, the second adjusting inclined plate 2302 is pushed by the abutting-against pressure adjusting element 22, so that the cutting knives 2304 extend into the crushing box 17 to rapidly cut the material inside the crushing box 17;

the auxiliary discharging part 21 comprises sliding ports distributed on the outer side of the upper end of the crushing box 17 in an array manner, a rectangular sliding block is arranged in each sliding port in a matching manner, an air guide channel 2103 is arranged in each rectangular sliding block, a first reset side plate 2101 is arranged at the outer end of each rectangular sliding block, the first reset side plate 2101 is fixedly connected with the outer wall of the crushing box 17 through a second spring 2104, an air jet port 2105 used for jetting air is arranged at the lower side of the inner end of each rectangular sliding block, an air inlet communicated with the air guide channel 2103 is arranged at the upper end of the outer side of each rectangular sliding block, a guide blade 2102 used for guiding the air flow to enter is arranged at the position of the air inlet, a first adjusting inclined plate 2106 matched with the crushing cutting part 23 is arranged at the lower side of the first reset side plate 2101, the lower end of the first adjusting inclined plate 2106 extends towards the crushing box 17, and when the pressing adjusting part 22 does not act, the second spring 2104 pushes the first reset side plate 2101 to slide away from the crushing box 17, therefore, the rectangular sliding block is pulled out of the crushing box 17, the auxiliary discharging part 21 is in a non-working state at the moment, when the rectangular sliding block needs to work, under the abutting pressure of the abutting pressure adjusting part 22, the first adjusting inclined plate 2106 guides the first reset side plate 2101 to slide towards the crushing box 17, the rectangular sliding block penetrates through the crushing box 17 to enter the crushing box 17, at the moment, when the crushing box 17 rotates at a high speed, the guide blade 2102 can promote external airflow to enter the air guide channel 2103, and the air is discharged along the air jet port 2105, so that impurities remained on the inner wall of the crushing box 17 are cleaned, and the defect that more impurities remain in the conventional device are overcome;

the telescopic structure is adopted, so that impurities cannot be adhered to the blade, and slag discharge is effectively realized by scraping residues on the blade in the storage process and matching with a blowing mode;

the pressing adjusting piece comprises a fixing ring 2201 sleeved outside the crushing box 17, an upper row and a lower row of pressing inner rods 2202 are distributed in the fixing ring 2201 in an array manner, the end part of each pressing inner rod 2202 is provided with a ball which presses against the auxiliary discharging piece 21 or the crushing cutting piece 23, the side surface of the fixing ring 2201 is fixedly connected with an adjusting vertical rod 30, the upper end of the adjusting vertical rod 30 is connected with a piston rod, the lower end of the piston rod is arranged in a rectangular hole at the lower end of a rotating column 13 in a sliding manner, the upper end of the piston rod is connected with the rotating column 13 through a return spring, the side surface of the adjusting vertical rod 30 is provided with an adjusting side rod 12, the end part of the adjusting side rod 12 is in sliding fit with a rotary groove on the inner wall of the processing box 11, the highest point of the rotary groove is close to the left side of the processing box 11, the lowest point of the rotary groove is positioned at the right side of the processing box 11, so that when the adjusting side rod 12 rotates to the right side along with the rotating column 13, the adjusting vertical rod 30 can slide downwards under the driving of the adjusting side rod 12, so that the pressing inner rod 2202 presses against the crushing cutting piece 23, and the crushing cutting piece 23 is in a working state, otherwise, when the adjusting side rod 12 rotates to the left side, the pressing inner rod 2202 presses against the auxiliary discharging piece 21, and the device is in a discharging state;

it should be noted that the distance between the balls on each adjacent inner abutting rod 2202 is smaller than the width of the first inclined adjusting plate 2106, so that there is no need to worry about the interference between the inner abutting rod 2202 and the first inclined adjusting plate 2106 which rotates rapidly;

the rotary driving part comprises a driven gear ring 19 arranged on the outer side of the upper end of the crushing box 17, the upper end tooth surface of the driven gear ring 19 is meshed with a driving gear 16, the driving gear 16 is arranged at the output end of a first motor 14, the first motor 14 is arranged on the side surface of the rotary column 13, the driving gear 16 is driven to rotate by the first motor 14, and the driving gear 16 drives the crushing box 17 to rotate by the driven gear ring 19, so that rotary power is provided for the crushing box 17;

the bottom of the partition board is also provided with an anti-blocking mechanism for scraping the filter screen 24 to avoid blocking, the anti-blocking mechanism comprises a shifting shaft 36 rotatably arranged at the middle position of the partition board, the upper end of the shifting shaft 36 is provided with a second gear 32, the second gear 32 is meshed with a first gear 31 at the outer side of the crushing box 17, the outer side of the lower end of the shifting shaft 36 is provided with a shifting side plate 37, the lower end of the partition board at one side of the shifting shaft 36 is rotatably provided with a reset rotating shaft 40 through a reset coil spring 43, a sliding guide rod 39 horizontally penetrates through the reset rotating shaft 40, one end of the sliding guide rod 39 is provided with a scraper plate 25 corresponding to the filter screen 24 in position, the upper end of the scraper plate 25 is provided with a brush surface for cleaning, the scraper plate 25 is fixedly connected with the reset rotating shaft 40 through a first spring 41, the other end of the sliding guide rod 39 is provided with a pressing inclined surface 38 matched with the shifting side plate 37, when smashing case 17 and rotating fast, first gear 31 can drive second gear 32 and rotate, second gear 32 drives through stirring axle 36 and stirs curb plate 37 and rotate, thereby support to pressing inclined plane 38 and produce the offset pressure to sliding guide 39 tip, at first, can make pivot 40 rotation that resets in the effect to pressing inclined plane 38, thereby make scraping flitch 25 and filter screen 24 relative rotation, in order to realize scraping, along with the increase of pivot 40 rotation amplitude that resets, the increase of resilience, stir curb plate 37 and can promote sliding guide 39 and slide along pivot 40 that resets, thereby produce horizontal displacement, just so make scraping flitch 25 clearance and produce the scraping in circumference and horizontal two positions, the effectual material effect of scraping that has improved, and when losing stirring curb plate 37 effect, pivot 40 that resets can reset fast, thereby further realize scraping.

The inside weighing device that is equipped with of processing case 11 at loading section of thick bamboo 35 bottom place, weighing device electric connection sets up the control panel on processing case 11 surface, is equipped with the alarm on the control panel, and when weight reached predetermined weight, then the alarm sends alarm signal, and the suggestion staff takes away rubbish.

The working principle of the invention is as follows: when the device is in actual use, solid impurities (vegetable waste) are mixed into the feeding port 18, a treatment target enters the crushing box 17, water in sewage enters the sewage collecting box 26 after being filtered by the filter screen 24, at the moment, the crushing and cutting piece 23 is driven to work by the abutting adjusting piece 22, then the crushing box 17 is driven to rotate rapidly by the rotary driving piece, so that the crushing and cutting piece 23 is matched to complete the cutting and crushing of blocks, in the cutting process, the anti-blocking mechanism can continuously scrape materials on the lower end face of the filter screen 24, the problem of blockage is avoided, the smooth falling of sewage is ensured, after the crushing is completed, the rotary column 13 is driven to rotate by the second motor 15, so that the crushing box 17 is transferred to the position of the blanking port 33, at the moment, under the action of the abutting adjusting piece 22, the auxiliary discharging piece 21 is switched to a working state, at the moment, when the crushing box 17 rotates rapidly, guide vane 2102 can promote external air current to get into air guide channel 2103, and gas is discharged along gas jet 2105 again to clear up crushing case 17 inner wall remaining impurity, avoid clearing up in the traditional device and remain more drawback, thereby impurity can get into and accomplish the collection in loading a section of thick bamboo 35.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.

Claims

1. A domestic sewage treatment device comprises a treatment box (11) and a plurality of support legs (28) arranged at the lower end of the treatment box, wherein the lower ends of the support legs (28) are provided with support blocks (29) for supporting, the left upper end of the treatment box (11) is provided with a feeding port (18) for feeding materials, a partition plate is horizontally arranged in the middle of the interior of the treatment box (11), and the left side of the partition plate is provided with a filter screen (24) for filtering sewage;

the sewage treatment device is characterized in that a sewage collection box (26) for collecting sewage is arranged below the filter screen (24), a drain pipe (27) for draining water is arranged on the left side of a treatment box (11) where the sewage collection box (26) is located, a second motor (15) is arranged in the middle of the top of the treatment box (11), a rotating column (13) is arranged at the output end of the second motor (15), a mounting side plate (20) is arranged on the side surface of the rotating column (13), a crushing box (17) is rotatably arranged on the mounting side plate (20), a rotary driving piece for driving the crushing box to rotate is arranged on the mounting side plate (20), and a bottom ring which is in compressed contact with the upper end surface of the partition plate to realize sealing is rotatably arranged at the bottom of the crushing box (17);

the crushing and cutting device is characterized in that a crushing and cutting part (23) used for cutting impurities in the crushing box (17) and an auxiliary discharging part (21) used for assisting discharging are arranged on the side face of the crushing box (17), a pressing and adjusting part (22) used for switching the crushing and cutting part (23) and the auxiliary discharging part (21) to work is arranged at the lower end of the rotary column (13), a blanking port (33) used for discharging the impurities is arranged on the right side of the partition plate, a loading barrel (35) used for collecting the impurities is arranged below the blanking port (33), and a material taking port (34) and a movable door are arranged on the side face of the processing box (11) where the loading barrel (35) is located;

the pressing adjusting part (22) comprises a fixing ring (2201) sleeved on the outer side of the crushing box (17), an upper row of pressing inner rods (2202) and a lower row of pressing inner rods (2201) are distributed in the fixing ring (2201) in an array mode, a ball bearing pressed against the auxiliary discharging part (21) or the crushing cutting part (23) is arranged at the end of each pressing inner rod (2202), the side face of the fixing ring (2201) is fixedly connected with an adjusting vertical rod (30), the upper end of the adjusting vertical rod (30) is connected with a piston column, the lower end of the piston column is arranged in a rectangular hole in the lower end of a rotating column (13) in a sliding mode, the upper end of the piston column is connected with the rotating column (13) through a return spring, an adjusting side rod (12) is arranged on the side face of the adjusting vertical rod (30), the end of the adjusting side rod (12) is in sliding fit with a rotary groove in the inner wall of the processing box (11), and the highest point of the rotary groove is close to the left side of the processing box (11), the lowest point of the rotary groove is positioned at the right side of the treatment box (11).

2. The domestic sewage treatment device according to claim 1, wherein the crushing cutter (23) comprises a second reset side plate (2301) distributed outside the crushing box (17) in an array, the inner side surface of the second reset side plate (2301) is provided with a plurality of cutting knives (2304) for cutting, the cutting knives (2304) are in sliding fit with sliding knife grooves on the surface of the crushing box (17), the second reset side plate (2301) is fixedly connected with the outer wall of the crushing box (17) through a third spring (2303), the upper end of the second reset side plate (2301) is provided with a second adjusting inclined plate (2302) corresponding to the abutting pressure regulator (22), and the upper end of the second adjusting inclined plate (2302) extends towards the crushing box (17).

3. The domestic sewage treatment device according to claim 1, wherein the auxiliary discharging member (21) comprises sliding ports distributed in an array on the outer side of the upper end of the crushing tank (17), each sliding port is provided with a rectangular sliding block in a matching way, each rectangular sliding block is internally provided with an air guide channel (2103), the outer end of each rectangular sliding block is provided with a first reset side plate (2101), the first reset side plate (2101) is fixedly connected with the outer wall of the crushing tank (17) through a second spring (2104), the lower side of the inner end of each rectangular sliding block is provided with an air injection port (2105) for injecting air, the upper end of the outer side of each rectangular sliding block is provided with an air inlet communicated with the air guide channel (2103), the position of the air inlet is provided with a guide vane (2102) for guiding the air flow to enter, the lower side of the first reset side plate (2101) is provided with a first adjusting inclined plate (2106) matched with the crushing cutting member (23), the lower end of the first swash plate (2106) extends toward the grinding box (17).

4. The domestic sewage treatment apparatus according to claim 1, wherein said rotary driving member comprises a driven ring gear (19) disposed outside the upper end of the pulverizing tank (17), wherein the upper end tooth surface of said driven ring gear (19) is engaged with a driving gear (16), said driving gear (16) is disposed at the output end of the first motor (14), and said first motor (14) is disposed at the side of the rotary column (13).

5. The domestic sewage treatment device according to claim 1, wherein the bottom of the partition board is further provided with an anti-blocking mechanism for scraping the filter screen (24) to avoid blocking, the anti-blocking mechanism comprises a shifting shaft (36) rotatably arranged at the middle position of the partition board, a second gear (32) is arranged at the upper end of the shifting shaft (36), the second gear (32) is meshed with a first gear (31) at the outer side of the crushing box (17), a shifting side plate (37) is arranged at the outer side of the lower end of the shifting shaft (36), a reset rotating shaft (40) is rotatably arranged at the lower end of the partition board at one side of the shifting shaft (36) through a reset coil spring (43), a sliding guide rod (39) horizontally penetrates through the reset rotating shaft (40), one end of the sliding guide rod (39) is provided with a scraper (25) corresponding to the position of the filter screen (24), the upper end of the scraping plate (25) is provided with a brush surface for cleaning, the scraping plate (25) and the reset rotating shaft (40) are fixedly connected through a first spring (41), and the other end of the sliding guide rod (39) is provided with a pressing inclined surface (38) matched with the shifting side plate (37).

6. The domestic sewage treatment device according to claim 1, wherein a weighing device is arranged inside the treatment box (11) with the bottom of the loading cylinder (35) positioned therein, the weighing device is electrically connected with a control panel arranged on the surface of the treatment box (11), and an alarm is arranged on the control panel.